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Article Dans Une Revue Optics Express Année : 2015

Quality assessment of combined quantization-shot-noise-induced decorrelation noise in high-speed digital holographic metrology

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Résumé

This paper discusses on the influence of decorrelation noise induced by quantization and shot-noise when recording digital holograms at very high frame rate. A criterion based on the coherence factor of the hologram phase difference is proposed. The main parameters of interest are the ratio between the reference and the object waves and the sensor dynamics, depending on the photo-electron capacity of pixels. The study is based on a full numerical simulation of the holographic process, which provides useful rules. This leads to define the optimal conditions for recording at very-high frame rate with minimization of the decorrelation noise. Experimental results obtained with frame rate at 50kHz confirm the proposed approach.

Dates et versions

hal-02403176 , version 1 (10-12-2019)

Identifiants

Citer

Julien Poittevin, Pascal Picart, François Gautier, Charles Pezerat. Quality assessment of combined quantization-shot-noise-induced decorrelation noise in high-speed digital holographic metrology. Optics Express, 2015, 23 (24), pp.30917. ⟨10.1364/OE.23.030917⟩. ⟨hal-02403176⟩
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